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context.h
1/*
2 * This file is part of the KDE libraries
3 * Copyright (C) 1999-2001 Harri Porten (porten@kde.org)
4 * Copyright (C) 2001 Peter Kelly (pmk@post.com)
5 * Copyright (C) 2003 Apple Computer, Inc.
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public License
18 * along with this library; see the file COPYING.LIB. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 *
22 */
23
24#ifndef KJS_CONTEXT_H
25#define KJS_CONTEXT_H
26
27#include "function.h"
28
29namespace KJS {
30
34 class ContextImp {
35 friend class Context;
36 friend class StatementNode;
37 public:
38 // TODO: remove glob parameter. deducable from exec.
39 ContextImp(Object &glob, InterpreterImp *interpreter, Object &thisV, int _sourceId, CodeType type = GlobalCode,
40 ContextImp *callingContext = 0L, FunctionImp *func = 0L, const List *args = 0);
41 virtual ~ContextImp();
42
43 const ScopeChain &scopeChain() const { return scope; }
44 CodeType codeType() const { return m_codeType; }
45 Object variableObject() const { return variable; }
46 void setVariableObject(const Object &v) { variable = v; }
47 Object thisValue() const { return thisVal; }
48 ContextImp *callingContext() { return _callingContext; }
49 ObjectImp *activationObject() { return activation.imp(); }
50 FunctionImp *function() const { return _function; }
51 const List *arguments() const { return _arguments; }
52
53 void pushScope(const Object &s) { scope.push(s.imp()); }
54 void popScope() { scope.pop(); }
55 LabelStack *seenLabels() { return &ls; }
56
57 void mark();
58
59 void pushTryCatch() { tryCatch++; };
60 void popTryCatch() { tryCatch--; };
61 bool inTryCatch() const;
62
63 void setLines(int l0, int l1) { line0 = l0; line1 = l1; }
64
65 private:
66 InterpreterImp *_interpreter;
67 ContextImp *_callingContext;
68 FunctionImp *_function;
69 const List *_arguments;
70 Object activation;
71
72 ScopeChain scope;
73 Object variable;
74 Object thisVal;
75
76 LabelStack ls;
77 CodeType m_codeType;
78
79 int tryCatch;
80 int sourceId;
81 int line0;
82 int line1;
83 Identifier functionName;
84 List args;
85 };
86
87} // namespace KJS
88
89#endif
KJS::ContextImp
Execution context.
Definition: context.h:34
KJS::Context
Represents an execution context, as specified by section 10 of the ECMA spec.
Definition: interpreter.h:72
KJS::FunctionImp
Implementation class for functions implemented in JS.
Definition: internal.h:389
KJS::Identifier
Represents an Identifier for a Javascript object.
Definition: identifier.h:32
KJS::LabelStack
The "label set" in Ecma-262 spec.
Definition: internal.h:161
KJS::List
Native list type.
Definition: list.h:48
KJS::Object
Represents an Object.
Definition: object.h:81
KJS::ScopeChain
A scope chain object.
Definition: scope_chain.h:47

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